EP2991533B1 - Staubsaugerbürstenreiniungsvorrichtung mit leistungskontrolsystem - Google Patents

Staubsaugerbürstenreiniungsvorrichtung mit leistungskontrolsystem Download PDF

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Publication number
EP2991533B1
EP2991533B1 EP14744151.3A EP14744151A EP2991533B1 EP 2991533 B1 EP2991533 B1 EP 2991533B1 EP 14744151 A EP14744151 A EP 14744151A EP 2991533 B1 EP2991533 B1 EP 2991533B1
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EP
European Patent Office
Prior art keywords
agitator
cleaner
vacuum cleaner
power source
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14744151.3A
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English (en)
French (fr)
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EP2991533A2 (de
Inventor
Henrik Eriksson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux AB
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Electrolux AB
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Filing date
Publication date
Priority claimed from US13/835,691 external-priority patent/US9295362B2/en
Application filed by Electrolux AB filed Critical Electrolux AB
Publication of EP2991533A2 publication Critical patent/EP2991533A2/de
Application granted granted Critical
Publication of EP2991533B1 publication Critical patent/EP2991533B1/de
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0405Driving means for the brushes or agitators
    • A47L9/0411Driving means for the brushes or agitators driven by electric motor
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0461Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466Rotating tools
    • A47L9/0477Rolls
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805Parameters or conditions being sensed
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2847Surface treating elements
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857User input or output elements for control, e.g. buttons, switches or displays
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates generally to cleaning devices and, more specifically, to cleaning device agitators having features for removing dirt and debris from the agitator.
  • agitators can function in a variety of ways and appear in many forms.
  • One typical embodiment of an agitator is a tube or shaft that rotates around its longitudinal axis and has one or more features that agitate the surface as it rotates.
  • Such features typically include one or more bristle tufts, flexible flaps, bumps, and so on. These are commonly referred to as "brushrolls,” but other terms have been used to describe them.
  • the agitator moves or dislodges dirt from the surface, making it easier to collect by the cleaning device.
  • Agitators are useful in a variety of cleaning devices including vacuum cleaners, sweepers, wet extractors, robotic cleaners, and so on.
  • the agitator In a sweeper, the agitator typically moves or throws the dirt directly into a receptacle.
  • the dirt In a vacuum cleaner or similar device, the dirt may be entrained in an airflow generated by a vacuum within the cleaning device and thereby conveyed to a filter bag, cyclone separator or other kind of dirt collection device in the vacuum cleaner.
  • U.S. Pat. No. 4,372,004 which reference is incorporated herein, provides an example of such an agitator.
  • the debris may include human and animal hairs, strings, threads, carpet fibers and other elongated fibers that wrap around or otherwise cling to the agitator. It has also been found that accumulated debris can reduce the performance of the agitator in a variety of ways. For example, debris may cover the agitation bristles and diminish the agitator's ability to agitate a surface. Further, debris on the agitator may impede the rotation of the agitator by wrapping around the axle or by creating additional friction with the cleaning head.
  • debris can also accumulate on or migrate to the ends of the agitator and enter the bearing areas where it may cause binding, remove bearing lubrication, or otherwise generate high friction, excessive heat, or other undesirable conditions that can damage the bearings or mounting structure.
  • debris collected on the agitator may create an imbalance in the agitator that may result in sound and/or vibrations when the agitator rotates.
  • Debris that has collected on an agitator is often difficult to remove because it has wrapped tightly around the agitator and intertwined with the bristles. Users of a cleaning device often must invert the device and remove the debris with manual tools such as knives, scissors or other implements. Manual removal can be unsanitary, time consuming and, if the user fails to follow instructions to deactivate the vacuum, may expose the user to contact with a moving agitator.
  • Some known devices use mechanisms and features to facilitate removing elongated fibers, such as string and hair, that may become wrapped around an agitator during use.
  • some agitators are provided with integral grooves that allow access by a pair of scissors or a knife blade to manually cut the fiber.
  • Other cleaning devices use comb-like mechanisms to attempt to remove fibers.
  • U.S. Patent No. 2,960,714 which is incorporated herein by reference.
  • Still other devices such as those shown in U.S. Application No. 12/405,761, filed on March 17, 2009 (Publication No. US 2009/0229075 ), use a movable blade to selectively press against the agitator to sever or abrade fibers.
  • the agitator is provided with a raised support surface that provides a firm backing against which the blade presses to pinch and cut the fibers.
  • Devices such as those in U.S. Application No. 12/405,761 have been found to be effective for simple and durable user-friendly cleaning.
  • a vacuum cleaner agitator system having an agitator, an electric motor configured to rotate the agitator, an electric power source, and an agitator cleaner.
  • the agitator cleaner is mounted adjacent the agitator and movable between a first position in which the agitator cleaner is spaced from the agitator and a second position in which the agitator cleaner engages the agitator while the agitator is being rotated by the electric motor to remove debris from the agitator.
  • the drive control system includes a first drive mode in which the drive control system connects the electric power source to the electric motor to drive the electric motor at a first power level, and a second drive mode, activated upon receiving an indication from the agitator cleaning detector that the agitator cleaner is in the second position, in which the drive control system connects the electric power source to the electric motor to drive the electric motor at a second power level.
  • the second power level is greater than the first power level.
  • the vacuum cleaner 100 includes a base 102, a handle 104, and a pivot joint 106 connecting the base 102 to the handle 104.
  • the exemplary handle 104 includes a dirt collector 108, such as a bag chamber or cyclone separator, and a suction motor 110 (i.e., a combined impeller and electric motor) configured to suck air through the dirt collector 108.
  • the handle 104 is connected to the base 102 by a suction hose 112, and the suction hose 112 is fluidly connected to a suction inlet 114 located on the bottom of the base 102.
  • the vacuum cleaner 100 may be powered by a battery pack 116, a cord to a household power supply, a combination of the foregoing, or the like.
  • the exemplary base 102 includes a rotating floor agitator 118 and an agitator cleaner 120. These may be visible to the user through a window 122 on the surface of the base 102.
  • a foot pedal 124 or other mechanism may be provided to operate the agitator cleaner 120. Details of the agitator 118 and agitator cleaner 120 are provided below.
  • the pivot joint 106 joins the base 102 to the handle 104 to allow relative movement therebetween.
  • the pivot joint 106 may provide a single pivot axis (e.g., tilting back and forth about a pivot that extends in the lateral direction) or multiple pivot axes (e.g., tilting about a laterally-extending pivot axis and swiveling about a long axis of the handle 104 or rotating about a second pivot axis that extends in the fore-aft direction).
  • Pivot axes may be defined by bushings, shafts, bearings, and the like, as known in the art.
  • One or more locking mechanisms may be provided to selectively prevent the handle 104 from pivoting about one or more axes, in order to hold the handle 104 in an upright position or for other purposes.
  • the vacuum cleaner 100 may include various other features.
  • the handle 104 may include a grip, storage for accessory tools, a removable cleaning hose and associated wand, and other typical features of upright vacuum cleaners.
  • the vacuum cleaner 100 also may include supplemental filters to provide fine dust separation.
  • the locations of the various working parts, such as the suction motor 110 and dirt collector 108 may be modified, such as by placing one or both in the base 102 or inside an enlarged version of the joint 106. Other variations and modifications will be apparent to persons of ordinary skill in the art in view of the present disclosure.
  • FIG. 2 illustrates an example of an agitator 118 and an associated agitator cleaner 120.
  • the agitator 118 comprises a spindle 200 that is rotatably mounted to the base by first and second bearings 202.
  • a plurality of agitating devices such as bristles 204 or flaps, extend from the spindle 200 a first radial distance to extend outside the suction inlet 114 to contact an underlying surface.
  • the term "radial distance” refers to a distance from the spindle's rotation axis 206 to the furthest point, as measured in a plane orthogonal to the rotation axis 206, on the part in question.
  • the bristles 204 may comprise tufts or rows of fibers.
  • the bristles 204 are provided as two helical rows of spaced fiber tufts. Each row reverses its helical direction at the midpoint of the spindle 200, which may be helpful to prevent the generation of lateral forces during operation and help sweep dirt to a centrally-located suction passage.
  • the spaced tufts may be replaced by an arrangement of fibers that extends continuously along the spindle 200, with periodic gaps as required to avoid contact with support structures that may be located in the base 102 or suction inlet 114.
  • Other embodiments may provide more than two helical rows, use helical rows that do not reverse direction, or reverse direction more than once or at different locations, and so on. Other variations and modifications will be apparent to persons of ordinary skill in the art in view of the present disclosure.
  • One or more support surfaces 208 also may extend a second radial distance from the spindle 200.
  • the second radial distance is less than the first radial distance, and preferably is not sufficient to reach outside the suction inlet 114. This prevents the support surfaces 208 from striking the underlying surface, but this is not strictly required in all embodiments.
  • the support surfaces 208 preferably are arranged in a pattern that matches the bristles 204, and in this case they are shaped as helixes that reverse direction at about the middle of the spindle's length. This "herringbone" pattern may help distribute loads created by the agitator cleaner 120 and provide other benefits.
  • the support surfaces 208 also preferably extend, without any interruptions and at an essentially constant radial distance, from a first end of each support surface 208 adjacent one end of the spindle 200 to a second end of each support surface 208 located adjacent the other end of the spindle 200. This provides a continuous surface to bear against the agitator cleaner 120 throughout the agitator's full 360° rotation. This prevents the agitator cleaner 120 from moving up and down as the agitator 118 rotates, which may be uncomfortable to the operator and cause premature wear and damage.
  • Alternative support surfaces 208 may have other shapes, and may have different overall shapes than the agitating devices.
  • the support surfaces 208 may include a series of radial ribs 210 with pockets between adjacent ribs 210 to assist with cleaning.
  • the support surfaces 208 also may include outer surfaces 212 that are formed as segments of a circle centered on the spindle's rotation axis 206, which may encourage contact with the agitator cleaner 120 over a substantial arc of the agitator's rotation.
  • the outer surfaces 212 may all be at the same radial distance from the rotation axis 206, or portions may be at different distances.
  • the left side of one of the two support surfaces 208 may taller than the right side, and the right side of the other support surface 208 may be taller than the left side. This may encourage more efficient cleaning by providing a higher contact force on a single point along each support surface 208 at any given time during rotation.
  • Other variations and modifications will be apparent to persons of ordinary skill in the art in view of the present disclosure.
  • the exemplary agitator cleaner 120 comprises a cleaning member 214 that is connected to a rigid bar 216.
  • the cleaning member 214 preferably comprises a blade-like edge that extends continuously along the portion of the spindle 200 that has bristles 204 or other agitating members extending therefrom. Gaps may be provided in the cleaning member 214 where supports or other structures would otherwise interfere with the cleaning member 214.
  • the cleaning member 214 optionally may be made of a flexible sheet of material, such as metal, to allow some flexure to prevent the generation of excessive force against the support surfaces 208.
  • other embodiments may use a cleaning member 214 made of relatively rigid metal, plastic, ceramic or other materials. While it is preferred to have a cleaning member 214 with a continuous straight edge, such as described above and shown in Figure 1 , other embodiments may use serrations or discrete teeth to form some of all of the cleaning member 214.
  • the bar 216 which may be integral to or separately formed from the cleaning member 214, is pivotally mounted to the base 102 by pivots 218.
  • the pivots 218 may be mounted on bearings or bushings to offer relatively smooth rotation.
  • the bar 216 includes an actuator, such as a lever 220, that may be manipulated to move the cleaning member 214 into engagement with the bristles 204 to cut, abrade or otherwise remove fibers from the agitator 118.
  • the lever 220 may be operated directly, or through a linkage.
  • the lever 220 in Figure 2 is operated by the foot pedal 124.
  • the foot pedal 124 contacts a rocker 222 on one side of a pivot 224 on which the rocker 222 is rotatably mounted, and the rocker 222 contacts the lever 220 on the other side of the pivot 224.
  • the rocker 222 converts a downward force applied by the foot pedal 124 into an upward force applied to the bottom of the lever 220.
  • a spring 226 may be provided to return the parts to their starting position after the user stops pressing on the foot pedal 124.
  • a separate spring (not shown) or other resilient linkage may be interposed between the rocker 222 and the pedal 124 or the lever 220 to limit the amount of force that can be transmitted from the pedal 124 to the lever 220.
  • the rocker 222 and foot pedal 124 may be replaced by an electrical solenoid that presses on the lever 220 or bar 216, either directly or through a linkage.
  • the cleaning member 214 may be mounted for linear reciprocation or other kinds of movement.
  • Other embodiments may use other mechanisms to articulate the cleaning member 214, such as other linkage arrangements.
  • Figures 3A and 3B illustrate an exemplary agitator cleaning system incorporating the agitator 118 and agitator cleaner 120 of Figure 2 .
  • Figure 3A shows the system in the idle position
  • Figure 3B shows the system in the operative position.
  • the agitator 118 is rotated by an agitator motor 300.
  • the agitator motor 300 may comprise any suitable electric motor, and options include, but are not limited to: brushless motors, AC (alternating current) or DC (direct current) commutator motors, servomotors, phase control motors, inverter drive induction motors, reluctance motors, and the like.
  • the agitator motor 300 may be the suction motor 110, but more preferably is a separate motor dedicated to driving the agitator 118.
  • the agitator motor 300 is operably connected to the agitator 118 by a belt 302, gears, or the like.
  • the belt 302 may wrap around a pulley 304 mounted on the agitator 118.
  • Other embodiments may use a side drive arrangement in which a side face of the agitator 118 abuts a pulley that is separately mounted in the base 102, and interlocking teeth transfer torque from the separate pulley to the agitator 118.
  • the latter arrangement can be used to remove the belt and pulley from the airflow path, and may be desirable in smaller devices that typically do not require belt changes.
  • the agitator motor 300 may be powered by an AC power source 306 or a DC power source 308 (e.g., battery 116).
  • An electronic control unit (“ECU") 310 is provided as a motor drive controller to regulate the electric power supply to control the operation of the agitator motor 300.
  • the ECU 310 may comprise a collection of electrical devices, including multiple separate microcomputers and other devices, or it may be integrated into a single unit.
  • the particular control algorithm programmed into the ECU 310 can vary depending on the type of power supply (AC or DC) and the type of motor used as the agitator motor 300.
  • a DC motor may be driven by a DC power supply using an ECU 310 having solid-state controllers (transistors, thyristors, etc.) to form a "chopper" circuit control to drive the motor by frequency and/or pulse-width modulation.
  • DC motors also may be driven using an AC power source via a suitable converter using phase control or other algorithms.
  • AC motors may be driven by similar control circuits using triacs or other solid-state controls.
  • Such control systems and associated hardware are generally known in the art. Non-limiting examples of control circuits and systems that may be used as the ECU 310 include those shown in U.S. Patent Nos.
  • the ECU 310 is controlled by a power switch 126 located on the handle 104 or base 102. When the switch 126 is activated, the ECU 310 connects the power source 306, 308 to the agitator motor 300 to drive it in a normal operation mode.
  • the ECU 310 also includes a control subroutine (and possibly associated circuit elements) to increase power to the agitator motor 300 when the agitator cleaner 120 is in use. As shown in Figure 3B , the agitator cleaner 120 can be moved to an operative position in which the cleaning member 214 engages the support surface 208. In this position, friction opposing the agitator motor's drive force is generated by contact between the cleaning member 214 and the support surface 208.
  • Additional friction is generated as the bristles 204 contact, bend, and pass under the cleaning member 214.
  • the total rotational resistance caused by this friction can be significant, and may slow down or even stop the agitator motor 300. While some degree of slowing may be acceptable, if the rotation of the agitator 118 decreases too much, the agitator cleaner 120 may become highly inefficient or ineffective at removing debris. Also, operating the agitator motor 300 at a reduced speed may damage the agitator motor 300 by reducing the flow of cooling air passing therethrough. For these reasons, it may be desirable to increase power to the agitator motor 300 during the agitator cleaning process, in order to prevent the agitator motor 300 from slowing too much.
  • One option for automatically increasing power to the agitator motor 300 is to use a speed-regulating control system to continuously drive the agitator motor 300 at a constant preset or user-adjustable speed after startup.
  • a speed-regulating control system to continuously drive the agitator motor 300 at a constant preset or user-adjustable speed after startup.
  • Such systems are known in the art and need not be described herein, but examples are provided in some of the references cited above.
  • a control system would not, without separate input, be able to differentiate between an agitator cleaning operation and a fault condition.
  • objects may lock or impede the agitator, leading to a sudden and continuous increase in the agitator motor's current draw.
  • agitator motor control circuits often employ overcurrent detection circuits that monitor the agitator motor's current draw and terminate operation if the current exceeds a predetermined value.
  • the control circuit may use both current and time as factors to terminate motor operation. For example, an overcurrent exceeding a relatively low threshold may be permitted for a relatively long time, while an overcurrent exceeding a higher threshold may be permitted for a shorter time. It has been found that agitator cleaning operations can cause overcurrent conditions that exceed the threshold value used for terminating the agitator motor 300.
  • an embodiment of an ECU 310 may include an agitator cleaning detector to determine when the agitator cleaner 120 is in the operative state, and an associated control circuit to temporarily increase power to the agitator motor 300 when the agitator cleaner 120 is operating.
  • the agitator cleaning detector may comprise a microswitch 312 that is turned on and off by contact with the agitator cleaner 120, but other devices, such as an optical trigger, a piezoelectric switch, or the like, may be used in other embodiments. It will be appreciated that the microswitch may be open in the position in Figure 3A and closed in the position in Figure 3B , or vice-versa, depending on the details of the control circuitry.
  • the ECU 310 Upon activation of the microswitch 312, the ECU 310 receives a signal indicating that the vacuum cleaner 100 has been placed into the agitator cleaning state. At this time, the ECU 310 can increase power to the agitator motor 300 in any of a variety of ways. For example, when the microswitch 312 indicates to the ECU 310 that the agitator cleaner 120 is in use, the ECU 310 may close a separate circuit to connect a supplemental battery 314 in series with a DC power source 308. The design of such a control circuit is within the capabilities of persons of ordinary skill in the art without undue experimentation. One circuit suitable for connecting a supplemental battery is shown in U.S. Patent No. 4,969,229 , which is incorporated herein by reference.
  • a similar circuit would use the microswitch to directly engage the additional power supply rather than using he ECU 310 as a relay.
  • Other ways to increase power to operate the agitator motor 300 would be for the ECU 310 to activate a speed control circuit to operate the agitator 118 at an increased duty cycle (e.g., operating during a greater fraction of each half wave in a phase controlled motor), at an increased voltage level, at an altered phase angle, and so on. It will be readily appreciated that the requirements for increasing power to the agitator motor 300 will depend on the type of motor and the type of power supply, and control systems for effectuating this result are known in the art and will be understood by persons of ordinary skill in the art without undue experimentation. During agitator cleaning operations, any current threshold for terminating agitator motor operation may be disabled or increased, as described above.
  • the ECU 310 may be programmed to operate at an increased power level for a predetermined time before automatically turning off the agitator motor 300 or returning to normal motor operation.
  • the ECU 310 may have a cutoff timer 316 that allows the ECU 310 to operate at an increased power level for 20 seconds before automatically returning to the normal operating state.
  • the cutoff timer 316 preferably overrides the agitator microswitch 312, so that the ECU 310 resumes normal agitator motor 300 power control after the predetermined time, even if the user is still holding the agitator cleaner 120 in the operative position and activating the microswitch 312.
  • One or more status indicators such as LEDs or other lights, may be provided on the vacuum cleaner 100 to indicate that the cutoff timer 316 has terminated high-power operation and returned to the normal motor drive state. At this point, continued use of the agitator cleaner 120 may result in reduced agitator speed and an audible change in operation.
  • the status indicator may include instructions to the user to terminate use of the agitator cleaner 120. It is also envisioned that a numerical timer or series of lights may be used to count down the cutoff timer 316.
  • the cutoff timer 316 may include a reset timer that prevents further high-power operation of the agitator motor 300 for a second predetermined time (e.g., 10 minutes).
  • the ECU 310 may include a memory structure to save the state of the cutoff timer 316 when the main switch 126 is off or the power supply disconnected.
  • the ECU 310 may comprises solid state equipment, or a collection of wires, switches, and the like.
  • the agitator motor 300 may be integrated into the hub of the agitator 118 in a concentric design, as known in the art.
  • the ECU 310 may be programmed to deliberately terminate operation of the agitator motor 300 at the conclusion of the cleaning cycle and prevent reactivation for a predetermined time.
  • an alternative agitator 118 may be mounted to the base 120 on a pivot arm 400. Arrangements for mounting an agitator in this manner are known in the art, and described, for example, in U.S. Patent No. 6,286,180 .
  • the pedal lever 220 may be connected to the agitator pivot arm 400 by a linkage 402. When the lever 220 is in the idle position, shown in Figure 4A , the agitator 118 extends outside the base 102 and can contact the underlying surface 404.
  • the lever 220 When the lever 220 is depressed to the operative position, shown in Figure 4B , the lever 220 rotates the linkage 402 and lifts the agitator 118 into the base 102 where it can no longer contact the surface 404.
  • the agitator cleaner 120 may be fixedly mounted in the base 102 at a location where the elevated agitator 118 comes into contact with it to perform the cleaning operation.
  • the microswitch 312 may be located where it is contacted by the lever 220, linkage 402, pivot arm 400, or by some other element of the system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Claims (17)

  1. Staubsaugerklopfeinrichtungssystem, umfassend:
    eine Klopfeinrichtung (118);
    einen Elektromotor (300), der zum Drehen der Klopfeinrichtung (118) konfiguriert ist;
    eine elektrische Antriebsquelle (306, 308, 116);
    eine Klopfeinrichtungsreinigungsvorrichtung (120), die neben der Klopfeinrichtung (118) angebracht ist, wobei die Klopfeinrichtungsreinigungsvorrichtung (120) und/oder die Klopfeinrichtung (118) zwischen einer ersten Stellung, in der die Klopfeinrichtungsreinigungsvorrichtung (120) von der Klopfeinrichtung (118) beabstandet ist, und einer zweiten Stellung, in der die Klopfeinrichtungsreinigungsvorrichtung (120) die Klopfeinrichtung (118) in Eingriff nimmt, während die Klopfeinrichtung (118) durch den Elektromotor (300) gedreht wird, um Schmutzteilchen von der Klopfeinrichtung (118) zu entfernen, beweglich sind/ist;
    dadurch gekennzeichnet, dass
    ein Klopfeinrichtungsreinigungsdetektor (312) dazu konfiguriert ist, anzuzeigen, wann sich die Klopfeinrichtungsreinigungsvorrichtung (120) und/oder die Klopfeinrichtung (118) in der zweiten Stellung befinden/befindet; und
    ein Antriebssteuerungssystem (310), das den Elektromotor (300), die elektrische Antriebsquelle (306, 308, 116) und den Klopfeinrichtungsreinigungsdetektor (312) wirkverbindet, wobei das Antriebssteuerungssystem (310) Folgendes umfasst:
    einen ersten Antriebsmodus, in dem das Antriebssteuerungssystem (310) die elektrische Antriebsquelle (306, 308, 116) mit dem Elektromotor (300) verbindet, um den Elektromotor (300) mit einer ersten Leistungsstufe anzutreiben, und
    einen zweiten Antriebsmodus, der bei Empfang einer Anzeige von dem Klopfeinrichtungsreinigungsdetektor (312), dass sich die Klopfeinrichtungsreinigungsvorrichtung (120) in der zweiten Stellung befindet, in der das Antriebssteuerungssystem (310) die elektrische Antriebsquelle (306, 308, 116) mit dem Elektromotor (300) verbindet, um den Elektromotor (300) mit einer zweiten Leistungsstufe anzutreiben, wobei die zweite Leistungsstufe höher als die erste Leistungsstufe ist, aktiviert wird.
  2. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei die elektrische Antriebsquelle eine Wechselstromantriebsquelle (306) umfasst.
  3. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei die elektrische Antriebsquelle eine Gleichstromantriebsquelle (308, 116) umfasst.
  4. Staubsaugerklopfeinrichtungssystem nach Anspruch 3, wobei die elektrische Antriebsquelle eine Hauptbatterie (116) umfasst.
  5. Staubsaugerklopfeinrichtungssystem nach Anspruch 4, wobei die elektrische Antriebsquelle eine Zusatzbatterie (314) umfasst und das Antriebssteuerungssystem (310) die Zusatzbatterie (314) in Reihe mit der Hauptbatterie (116) elektrisch verbindet, wenn sich das Antriebssteuerungssystem im zweiten Antriebsmodus befindet.
  6. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei der Klopfeinrichtungsreinigungsdetektor einen Mikroschalter (312) umfasst.
  7. Staubsaugerklopfeinrichtungssystem nach Anspruch 6, wobei die Klopfeinrichtungsreinigungsvorrichtung (120) zwischen der ersten Stellung und der zweiten Stellung beweglich ist und der Mikroschalter (312) zum Kontaktieren durch die Klopfeinrichtungsreinigungsvorrichtung (120), wenn sich die Klopfeinrichtungsreinigungsvorrichtung (120) in der zweiten Stellung befindet, positioniert ist.
  8. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei die Klopfeinrichtungsreinigungsvorrichtung (120) zwischen der ersten Stellung und der zweiten Stellung beweglich ist.
  9. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei die Klopfeinrichtung (118) zwischen der ersten Stellung und der zweiten Stellung beweglich ist.
  10. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei das Antriebssteuerungssystem (310) ferner ein Abschaltungszeitglied (316) umfasst, das dazu konfiguriert ist, nach Betrieb im zweiten Antriebsmodus für eine erste vorbestimmte Zeit das Antriebssteuerungssystem in den ersten Antriebsmodus zurückzubringen.
  11. Staubsaugerklopfeinrichtungssystem nach Anspruch 10, wobei das Abschaltungszeitglied (316) ferner dazu konfiguriert ist, zu verhindern, dass das Antriebssteuerungssystem für eine zweite vorbestimmte Zeit nach einem vorherigen Betrieb im zweiten Antriebsmodus in den zweiten Antriebsmodus schaltet.
  12. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei sich die Klopfeinrichtung (118) entlang einer Längsrichtung erstreckt und dazu konfiguriert ist, sich um eine parallel zur Längsrichtung verlaufende Drehachse zu drehen, und die Klopfeinrichtungsreinigungsvorrichtung (120) eine Reinigungsklinge umfasst, die sich in die Längsrichtung erstreckt.
  13. Staubsaugerklopfeinrichtungssystem nach Anspruch 1, wobei die Klopfeinrichtung (118) Folgendes umfasst:
    eine Spindel (200), die sich entlang einer Längsrichtung von einem ersten Spindelende zu einem zweiten Spindelende erstreckt und um eine parallel zu der Längsrichtung verlaufende Drehachse drehbar ist;
    Klopfvorrichtungen (204), die zwischen dem ersten Spindelende und dem zweiten Spindelende angeordnet sind und eine erste radiale Strecke von der Drehachse vorragen; und
    eine oder mehrere Stützflächen (208), die eine zweite radiale Strecke von der Drehachse vorragen, wobei die zweite radiale Strecke kleiner als die erste radiale Strecke ist.
  14. Staubsaugerklopfeinrichtungssystem nach Anspruch 13, wobei die Klopfvorrichtungen mindestens eine schraubenförmige Reihe von Borsten (204) umfassen.
  15. Staubsaugerklopfeinrichtungssystem nach Anspruch 13, wobei die eine oder die mehreren Stützflächen (208) mindestens einen schraubenförmigen Vorsprung umfasst/umfassen.
  16. Staubsaugerklopfeinrichtungssystem nach Anspruch 15, wobei sich die eine oder die mehreren Stützflächen (208) durchgehend über eine gleichförmige zweite radiale Strecke von einem ersten Stützflächenende neben dem ersten Spindelende zu einem zweiten Stützflächenende neben dem zweiten Spindelende erstreckt/erstrecken.
  17. Staubsaugerklopfeinrichtungssystem nach Anspruch 13, wobei:
    die Klopfeinrichtung (118) in einem Gehäuse mit einer Einlassdüse angebracht ist;
    sich die Klopfvorrichtungen (204) durch die Einlassdüse erstrecken, wenn sich die Spindel dreht; und
    sich die eine oder die mehreren Stützflächen (208) nicht durch die Einlassdüse erstreckt/erstrecken, wenn sich die Spindel dreht.
EP14744151.3A 2013-03-15 2014-03-14 Staubsaugerbürstenreiniungsvorrichtung mit leistungskontrolsystem Active EP2991533B1 (de)

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US13/835,691 US9295362B2 (en) 2008-03-17 2013-03-15 Vacuum cleaner agitator cleaner with power control
PCT/IB2014/001256 WO2014140935A2 (en) 2013-03-15 2014-03-14 Vacuum cleaner agitator cleaner with power control

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WO2014140935A3 (en) 2015-01-08
KR20160003656A (ko) 2016-01-11
JP2016510615A (ja) 2016-04-11
CN105338870B (zh) 2017-04-05
KR102024358B1 (ko) 2019-09-23
WO2014140935A2 (en) 2014-09-18
JP6360083B2 (ja) 2018-07-18
EP2991533A2 (de) 2016-03-09

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